Spool



Nov. 8, 194-9 E. w. POWELL 2,487,726

- SPOOL Filed Jan. 17, 1946- lig f 12g: 2

11 22512 Zur E g: f [an H50 /4 Pom 54L iatented Nov. 8, 1949 Edward W. Powell, Chicago, Ill., assignor to Hubbard.Spool Company, Chicago, Ill.,2a.c0rpora tion of Illinois.

Application January 17, 1946, Serial No. 641,813

7 Claims.

The presentinvention relates to a spool, and more particularly to a spool adapted for the general purpose of supporting yarn, thread, wire, or the like, preferably for thread such as nylon.

There are some processes of manufacture wherein-threads areremoved from spools over a head structure of a spool. In such event it is desirable that as little surface as possible be-ofprovide a spool construction to produce a-spool of comparatively light materials secured together tomake a-rigid, strcngand durable article.- A further object-of thepresent invention isto provide a -spoolwith improved-- arrangement which-willre'duce to a minimum the head structure peripheral surface over -which a thread" passes as it is drawn fromaspool. Another and further object of the present invention is-to providea-spool construction of-such arrangement that there is 410 danger-for thread or wire to be caughtduring the-winding winding operations e ..Another and-yetiurther objector-the present invention is --to provide a spoolconstructed to reduce manufacturing and assembly costs to a The above, other-and further objects oi -the present invention will be apparent 'from'the following description-and accompanying drawing.

An. embodiment ofthe "present invention is il-' lustratednin .the. accompanying drawing and viewsthereofare as follows:

o Figured is a side. elevational view of a spool constructed in accordance with the principles of the present invention;

Figure 2 is an end view of such a spool; Eigure 3 is. a fragmental sectional view taken in. the plane of line III-III of Figure 2 illustratingdetails ofcertain parts; a

N Figure 4 is a iragmental elevational view of the inner surface of an end plate or head structure taken in plane of line IVIV of Figure 3; and V Figure 5 is an enlarged fragmental section through an extruded traverse seat.

1 The drawing will nowbe explained.

.The spool of the present invention. includes-a traverse or barrel I!) having head structures II and I2. 1 l wk:

and unthe &5: l Another objector the present invention to The traverse or barrel I0 is constructed "from single thickness sheet material formed to cylindrical shape with the seam welded or otherwise secured. The head structures H and I2 are compo siteJEach head structure includes an inner member ['3 of sheet metal and an outer member 14- of wood. 'The inner member 13 of each-head structure has an axially formed flange l5 to receive the arbor or core tube 16. Arranged about the axis of the head member I3, and angularly spaced one f-romanothen are indentations or extrusions I! struck inwardly from the plane of the inner member l3, having'ar'cu'ate faces l8 which cooperate'to constitute a seat for one end of the traverse Ill. In addition to providing seatmeans for the traverse, the indentations rigidify ber of a head structure.

Between the ends of the indentations H the inner member [3 is provided with holes l9, formed byflanges [9a struck from member l3, projecting from the outer'surface of member 13, arranged with one hole between two a'djacentindentations, forreceivirig tie bars or rivets 20:

. An' inner member l3 has a peripheral flange 2| formed as axially extending in a direction'opposite "to that of the axial flange 15. The peripheral margin of the member I4 is beveled, as may be seen in Figure 3. When=the member 14 is assembled within the inner member [3 the peripheraldflange of the latter is made to conform to the; bevel orlslope of thelperiphery of the outer member. w The outer member [4 of the head structure, is,

. irrthe present'instance, shown as laminated Wood withgumwood on the exterior face.

Formedin the outer face of the outer member I4 is an annular-groove 23 disposed near the periphery of the member. .When the member Mis applied-to theinner member I3, the free margin ofthe inwardly. extending portion 22 of the inner member... flange is curled ,or turned into the groove-J3 to .thus secure the outer member M in place in the, inner member." Thisconstruction also removes anyroughnessthatithere might be adjacent theperiphery of the head structure, if the inturned portion 22 of the flange were not so treated; l

c; The outer member I4 is provided with an opening 28 in register with the axial opening of the inner member l3 as defined by the flange i5, and also provided-with openings 29 in register with the holes IQ of the innermemberfand of such diameter as-to receive the flanges l9a.-- v

The arbor: or core-tube is-preferably made the inner memfrom flat stock rolled into cylindrical shape, with the seam open.

The tie bars or rivets 20 are likewise preferably made as hollow rivets formed into cylindrical shape from flat stock, with the seams open.

To assemble the parts, the traverse or barrel Ill is applied against the inner member 13 of one of the head structures, and against the seats I8 of the indentations H. The other head structure is then applied to the other end of the traverse in the same manner. The core tube or arbor I6 is then applied, with its ends projecting beyond the outer faces of the outer members I4 of the head structures.

The outer faces of the outer members l4, about the rivet holes therethrough, are counterbored as at 24 to receive washers 25.

After the washers have been applied to' the various counterbores 24, the tie bars or' rivets 20 are then applied, and the whole structure submitted to end pressure so that the projecting ends of the arbor or core tube I6 as well as the projecting ends of the rivets or tie bars 20 are headed over, the ends of the rivets being headed over flatwise against the washers 25 and the ends of the arbor [6 being headed over and curled into annular groves 26 formed in the outer faces of members l4 about the axial openings through such members, so that the ends of the arbor will be smooth.

The construction is such that a spool having a traverse diameter of three inches and head structure diameters of six inches, and approximately three and a quarter inches between the head structures, weighs in the neighborhood of a pound and a half, or slightly less.

The spool of the present invention lends itself very readily for use in winding nylon thread as the thread is drawn from the spool over one of the head structures of a spool. Preferably, the peripheral flange 2| of a head structure is inclined with respect to the plane of the inner member l3, on a radius of approximately t; of an inch. Such a radius provides a minimum surface for frictional engagement with thread drawn out over one of the head structures.

It will be observed that the spool of the present invention is one which may be constructed of relatively light material. I have found that the traverse and the inner members l3 of the head structures may be very readily formed of 22-gauge stock. The manner of securing the various parts together, as heretofore described, makes assembly simple, assures centering of the traverse ID with respect to the head members II and I2 and the flanging of the ends of the tie bars or rivets 29 assures tight fit between the traverse l and the end structures II and I2.

Furthermore, the construction is such as to present no crevices in which thread may catch during the winding or unwinding operations as the ends of the traverse l0 fit tightly against the inner members [3 of the head structures.

The use of arbor l6, and hollow rivets 20 formed from flat stock, tends to reduce cost of manufacture of the spool. It will be noted that assembly is mechanically effected after the several parts have been put together by hand.

If desired, lugs 2'! might be partially struck out from the arbor or core tube IS, in position to engage against the margin of the flanges l5, as is shown in Figure 3, to more firmly connect the arbor to the head structures.

It will be noted that the spool of the present invention has head rims of minimum surface ex- 4 tent, while at the same time the construction is such that a strong and rigid spool is made from relatively light materials.

It will, of course, be understood that various details of construction may be varied through a wide range without departing from the principles of this "invention and it is, therefore, not the purpose to limit the patent granted hereon otherwise than necessitated by the scope of the appended claims.

I claim as my invention:

1. A head structure for a spool comprising an inner disk-member of metal having an inwardly extending axial flange and an outwardly extendingperipheral flange, a wooden outer member against the outer face of the inner member, the peripheral portion of the outer member being convergently beveled outwardly of said member and the peripheral flange of said inner member being bent against the beveled periphery of the outer member with the margin of said flange inturned into said outer member to hold the same in place,said outer member having an axial aperture in register with the axial flange of said inner member, and said members having a series of registering holes disposed in angular relation about the axis of said head structure for receiving rivets.

2. A dual member end plate for a spool comprising an inner member and an outer member, said inner member being of bendable material formed to provide an inwardly extending axial flange for an arbor tube and bendable to provide an outwardly extending peripheral flange bent on a short radius, an outer member of unbendable material formed with an axial opening and with a beveled periphery sloping convergently from the junction of the inner surface of the inner member and fitting snugly against the outer surface of the inner member and against the peripheral flange, said peripheral flange being bent against the bevel of the outer member and its margin curled into the face of the outer member to connect said members together.

3. A method of forming a composite end plate structure for a wire or thread carrying spools, which comprises, forming from a bendable material an inner member 'withan inwardly extending axial flange for receiving anarbor tube, forming an outwardly extending peripheral flange .on said member, forming from a rigid material an outer plate member with an axial opening to register with the opening defined by the axial flange of the inner member, forming the periphery of the outer member on a bevel, forming in the outer face of the outer member a circular groove adjacent the periphery of said member, applying the outer member against the inner member and bending the peripheral flange of the inner member against the beveled periphery of the outer member to conform to the bevel thereof and curling the margin of said flange into the groove of the outer member.

4. A spool comprising a'pair of heads, a drum between said heads, a coretube inside said drum having one end centrally disposed in each of said heads, said heads each comprising aninner disk member having an inwardly extending axial flange and an outwardly extending peripheral flange of bendable material, a rigid outer member against the outerface of the inner member, the peripheral portion of the outer member being convergently beveled outwardly of said member and the peripheral flange of said inner. member being bent against the beveled peripheryof the outer member with the margin of said flange inturned into said outer member to hold the same in place, said outer member having an axial aperture in register with the axial flange of said inner member, and said members having a series of registering holes disposed in angular relation about the axis of said head structure for receiving rivets.

5. A head structure for a spool comprising an inner disk member having an inwardly extending axial flange and an outwardly extending peripheral flange, an outer member against the outer face of said inner member, the peripheral portion of the outer member being convergently beveled outwardly of said member and the peripheral flange of said inner member being bent against the beveled periphery of the outer member with the margin of said flange inturned into said outer member to hold the same in place, said inner member being further characterized by a plurality of indentations having arc-shape marginal surfaces of substantially the same width as the axial flange and formed continuous with the wall of said inner member to afford a bearing ring for said drum.

6. A method of forming a composite end plate structure for wire or thread carrying spools which comprises forming from sheet metal an inner member with an inwardly axial flange for receiving an arbor tube, forming a circular series of indentations having arc-shape bearing surfaces formed continuous with the wall of the inner member to journal a drum, forming an outwardly extending peripheral flange on said member, forming from a. rigid material an outer plate member with an axial opening to register with the opening defined by the axial flange of the inner member, forming the periphery of the outer member on a bevel, and bending the peripheral flange of the inner member against the beveled periphery of the outer member to conform to the bevel thereof.

7. A head structure for a spool comprising an inner disk member having an inwardly extending axial flange and having an outwardly extending peripheral flange of flexible material, and a rigid outer member against the outer face of the inner member, the peripheral portion of the outer member being beveled outwardly of said member and the peripheral flange of said inner member being bent against the bevel periphery of the outer member with the margin of said flange inturned into said outer member to hold the same in place, said outer member having an axial aperture in register with the axial flange of said inner member.

EDWARD W. POWELL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 431,800 Carlstroem July 8, 1890 827,911 Houghton Aug. '7, 1906 962,452 Mossberg June 28, 1910 1,528,128 Peterson Mar. 3, 1925 1,609,473 Hubbard Dec. '7, 1926 2,264,117 Howsam .1 Nov. 25, 1941 2,316,028 Tucker Apr. 6, 1943 2,354,375 Howsam July 25, 1944 

